The influences of impeller types, baffle configurations and gas sparger on critical speed of floating particle in an agitated vessel were investigated.

• 探讨了搅拌桨型、挡板和气体分布器等结构因素及气体流量、颗粒质量分数等工艺因素对下沉颗粒三相体系临界搅拌转速的影响。